I got my "new" E6530 machine. It had a GPT/EFI hard disk (256 GB) with just Windows 10 on it. I took that one out and put the clone of my "bad" one in it. The BIOS was at A09. I updated it to A22, but the result was the the same as my "old" E6530: BSOD Windows Boot Manager failed with error code 0xC00000001. So, some files must be corrupted on the hard disk, but no idea which ones and so far no repair tool has found and fixed them. I have tried just about everything I can find online. Since I am seemingly unable to update my original Win 7 PRO to Win 10 (because it won't accept the Win 10 product key that *should* be on the machine to do an update in place which I swear I did 2 years ago), I can try a couple more things but then I guess I have no choice but to start over.
Jordan